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Old 31-07-2007, 21:24   #1 (permalink)
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How to shoot IR with IR filter (Hoya R72)

OK, I've bought the IR filter (Hoya R72) , so what special steps do I need to take now to shoot IR.

Before you say anything Markulous, I'll remember to attach the filter to the lens
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Old 31-07-2007, 21:33   #2 (permalink)
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Re: How to shoot IR with IR filter (Hoya R72)

First you need to buy my old Canon 10D. ('Cos it's more sensitive to IR than the 20D/30D. )

Next... Just put it on a tripod, use a decent lens stopped down a bit to avoid 'hot spots' and have a play. Focus manually - the correct focus won't be quite where the focusing scale shows. Exposure times can be very long.

Or... cheat and spoof it in Photoshop.
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Old 31-07-2007, 21:44   #3 (permalink)
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Re: How to shoot IR with IR filter (Hoya R72)

Far easier to do it in CS Dave........



Can't you send the filter back for a refund
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Old 31-07-2007, 22:15   #4 (permalink)
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Re: How to shoot IR with IR filter (Hoya R72)

Quote:
Originally Posted by Dave View Post
OK, I've bought the IR filter (Hoya R72) , so what special steps do I need to take now to shoot IR.

Before you say anything Markulous, I'll remember to attach the filter to the lens
I was going to say remove the lenscap........ but I shan't now!

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First you need to buy my old Canon 10D. ('Cos it's more sensitive to IR than the 20D/30D. )
More sensitive? I just have to remove the dust filter on my camera.......... which doubles as the IR filter. Instant IR!
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Old 01-08-2007, 22:47   #5 (permalink)
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Re: How to shoot IR with IR filter (Hoya R72)

I have just recently bought an R72 though much cheaper than Hoya. I have a EOS 20D which is not very sensitive to IR but is usable. I have tried experimenting and you need about 30 seconds exposure. It was a windy day so the clouds move a long way in 30 seconds, the wheat in the field also moved in the wind so only the barn stayed still. The result was everything in the frame except the barn was blurred. I will have another go soon on a day without wind.
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Old 02-08-2007, 10:53   #6 (permalink)
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Re: How to shoot IR with IR filter (Hoya R72)

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I will have another go soon on a day without wind.
You can get pills for this now.........
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Old 02-08-2007, 11:56   #7 (permalink)
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Re: How to shoot IR with IR filter (Hoya R72)

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You can get pills for this now.........


Dave, you'll have to share your secret location of this barn if local
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Old 02-08-2007, 22:29   #8 (permalink)
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Re: How to shoot IR with IR filter (Hoya R72)

Not till after I get a decent shot!!!

:
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Old 07-08-2007, 17:05   #9 (permalink)
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Re: How to shoot IR with IR filter (Hoya R72)

I hope I'm not going to burst your bubble here Dave but I hope you've still got your D70. If I remember correctly the D70 has a much weaker IR filter than the D200 giving it a much better IR capability. I was told not to bother doing IR images with the D200 as it is just not possible to get a decent image.

I'm sure a quick Google will throw up more info.
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Old 07-08-2007, 17:15   #10 (permalink)
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Re: How to shoot IR with IR filter (Hoya R72)

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Not till after I get a decent shot!!!

:
Git
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Old 07-08-2007, 17:51   #11 (permalink)
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Re: How to shoot IR with IR filter (Hoya R72)

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Originally Posted by Hacker View Post
I hope I'm not going to burst your bubble here Dave but I hope you've still got your D70. If I remember correctly the D70 has a much weaker IR filter than the D200 giving it a much better IR capability. I was told not to bother doing IR images with the D200 as it is just not possible to get a decent image.

I'm sure a quick Google will throw up more info.
Sold the D70 whilst I could still get a decent price for it

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I was told not to bother doing IR images with the D200 as it is just not possible to get a decent image.
Oh I don't know :- http://www.pixalo.com/community/phot...tml#post145840
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Old 07-08-2007, 18:00   #12 (permalink)
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Re: How to shoot IR with IR filter (Hoya R72)

One problem I am getting though is a "hotspot" in the very centre of shot that is over exposed all the time If i stop the lens down, the hotspot gets smaller. I'm sure I've read you should use a lens hood with the filter, but I thought that was only applicable if sunny day. These shots were taken in overcast conditions & still occured. Had to PS them out

Anyone else experienced that ?
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